First cardiologist and then Neurosurgeon

Hello there we understand your others condition and your feint and your concern towards her. But there are several reasons for fainting. Since you have told us that she is a diabetic and hypotensive lessening if fluid volume may cause thus along with reeducation if blood sugar levels. You need to keep momiyeringvher blood sugar levels with glucose meter and the level should not be less than 90. Any how take her to a local general physician. Thank you

First consult a Cardiologist and he will tell you whether you need to see a Neurologist after examining her.